The Anti-Defamation League (ADL), formerly known as the Anti-Defamation League of B'nai B'rith, is a New York–based international non-governmental organization that was founded to combat antisemitism, bigotry and discrimination. ADL is also known for its pro-Israel advocacy. Its current CEO is Jonathan Greenblatt. ADL headquarters are located in Murray Hill, in the New York City borough of Manhattan. The ADL has 25 regional offices in the United States including a Government Relations Office in Washington, D.C., as well as an office in Israel and staff in Europe.
https://en.wikipedia.org/wiki/Anti-Defamation_League